2x+2y=−44x+y=1In the system of equations above, what is the value of x ?

(A) -3(B) -1(C) 2/5(D) 1(E) 1 1/4

Question

2x+2y=−44x+y=1In the system of equations above, what is the value of x ?


(A) -3(B) -1(C) 2/5(D) 1(E) 1 1/4

Pankaj Rathore · Answer

Reduce the first equation by 2 and subtract it from the second one: (4x+y)−(x+y)=1−(−2)3x=3&nbsp;x=1Answer: D.

2x+2y=−4
4x+y=1
In the system of equations above, what is the value of x ?
(A) -3
(B) -1
(C) 2/5
(D) 1
(E) 1 1/4